International variation in management of screen-detected ductal carcinoma in situ of the breast

Antonio Ponti, Elsebeth Lynge, Ted James, Ondřej Májek, My von Euler-Chelpin, Ahti Anttila, Patricia Fitzpatrick, Maria Piera Mano, Masaaki Kawai, Astrid Scharpantgen, Jacques Fracheboud, Solveig Hofvind, Carmen Vidal, Nieves Ascunce, Dolores Salas, Jean-Luc Bulliard, Nereo Segnan, Karla Kerlikowske, Stephen Taplin, ICSN DCIS Working group